About GrimSlate
The story behind the modern army builder for Warhammer 40,000.
Our Mission
GrimSlate was created with one goal in mind: to provide the Warhammer 40,000 community with a modern, beautiful, and free army building tool. We believe every player deserves access to powerful list-building capabilities without barriers.
The Creator
Hi, I'm Jaume, a frontend engineer and lifelong Warhammer 40,000 enthusiast. I've been playing the game for years and building software for even longer — GrimSlate is where these two passions converge.
After years of using various list-building tools, I felt the community deserved something more modern, faster, and visually appealing. Something that captures the epic feel of the 41st millennium while being genuinely useful at the gaming table.
This project is a labor of love, built in my free time with the goal of giving back to a community that has given me so much enjoyment over the years.
Why GrimSlate?
I built GrimSlate because I wanted an army builder that felt as epic as the game itself. Here's what makes it different:
- Modern Design — A premium, dark-themed interface inspired by video game UIs and D&D Beyond, not spreadsheets
- Lightning Fast — Built with performance in mind using optimistic updates and local-first architecture
- Mobile First — Use it at the gaming table on your phone, or at home on your desktop
- Always Free — Core features will always be free for everyone
- Community Powered — Game data from BSData, feedback from players like you
Built With
GrimSlate is built with modern web technologies for maximum performance and reliability:
Thank You
None of this would be possible without the incredible Warhammer 40,000 community. A special thanks to:
- BSData contributors — For maintaining comprehensive game data that powers tools like this
- Early beta testers — For your feedback and patience as we shaped the tool
- The 40K community — For keeping the hobby alive and welcoming new players
- Games Workshop — For creating a universe that has inspired us for decades
What's Next
GrimSlate is actively developed with new features regularly. Planned additions include:
- • Unit Comparison — Side-by-side stat comparison tool
- • Social Features — Comments, follows, and activity feeds
- • Deep Validation — Advanced army composition rules
- • Collection Tracker — Track your owned models
Get in Touch
Have feedback, found a bug, or just want to say hi? I'd love to hear from you!
Last updated: December 2025